After experiencing difficulty, Queen Elizabeth withdraws from the Jubilee thanksgiving service.

After suffering difficulty while viewing Thursday's parade at Buckingham Palace, Britain's queen, Queen Elizabeth II, will not attend Friday's Jubilee service at St Paul's Cathedral on June 3.

This follows the Queen's participation in a beacon lighting ceremony on Thursday evening, which marked her 70th year on the throne.

The 96-year-old monarch emerged twice on the balcony of Buckingham Palace, backed by other senior royals, to witness a military parade and wave to hundreds of well-wishers gathered on The Mall.

The palace revealed she will not attend Friday's thanksgiving service hours after the event, but said she "would like to thank all those who helped make today such a wonderful occasion."

After considering the "travel and activity involved," the choice was taken with "much reluctance," according to the palace.

The Derby at Epsom Racecourse is the Queen's next Jubilee event, which she will attend on Saturday.

The Queen's seven decades as queen will be honoured at a service at St Paul's Cathedral in central London.

The Duke and Duchess of Cambridge, as well as the Prince of Wales and the Duchess of Cornwall, will all be in attendance, with Prince Charles representing the Queen.